Cyber Resilience

CVE-2021-36386

High

Published: 30 July 2021

Published
30 July 2021
Modified
21 November 2024
KEV Added
—
Patch
28 July 2021
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0026 49.7th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-36386 is a high-severity Missing Initialization of Resource (CWE-909) vulnerability in Fedoraproject Fedora. Its CVSS base score is 7.5 (High).

Operationally, ranked at the 49.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear…

more

whether use of Fetchmail on any realistic platform results in an impact beyond an inconvenience to the client user.

CWE(s)
CWE-909

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

fetchmail
fetchmail
≤ 6.4.20
fedoraproject
fedora
33, 34

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References